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mec1322: fix flash_physical_get_writable_flags()

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Add spi_enable() before SPI transaction. This fixes a problem where protect
host cmd ended up messing up SPI controller state.

Change-Id: Ief61f279cbd0a90e55ce87d0c350072dc8616c31
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/276338
Reviewed-by: Shawn N <shawnn@chromium.org>
Tested-by: Divya Jyothi <divya.jyothi@intel.com>
Commit-Queue: Divya Jyothi <divya.jyothi@intel.com>
This commit is contained in:
Andrey Petrov
2015-06-09 11:28:46 -07:00
committed by ChromeOS Commit Bot
parent bd7e885ae7
commit c75e78cd50
1 changed files with 5 additions and 1 deletions
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6
chip/mec1322/flash.c
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@@ -172,7 +172,11 @@ uint32_t flash_physical_get_valid_flags(void)
uint32_t flash_physical_get_writable_flags(uint32_t cur_flags)
{
uint32_t ret = 0;
enum spi_flash_wp wp_status = spi_flash_check_wp();
enum spi_flash_wp wp_status = SPI_WP_NONE;
spi_enable(1);
wp_status = spi_flash_check_wp();
spi_enable(0);
if (wp_status == SPI_WP_NONE || (wp_status == SPI_WP_HARDWARE &&
!(cur_flags & EC_FLASH_PROTECT_GPIO_ASSERTED)))